Snow removing device



F ch. 9, 1932.

s. SEVERSON 1,844,693

SNOW REMOVING DEVICE Filed Aug. 27, 1951 7 3gsggets sheet 1 s7 E 30 55EYETEDJZ Feb. 9, 1932. s. SEVER-SON SNOW REMOVING DEVICE 3 Sheets-Sheet 3j wW/ZW 5.55 1

EFEDJZ Patented Feb. 9, 1 932 SAMUEL SEVEBSON, OI VAIJJERS, WISCOIl'SINsnow nmrovme nnvron Application filed August 27, 1931. Serial No.559,716.

This invention appertains to means for elliciently removing snow fromcountry roadways, so as to effectively keep the roadways open to motortrafiic in thewinter season.

One of the primary objects of my invention is to provide a novel snowremoving machine embodying rotary blades or impellers for engaging andthrowing the snow on each side of the roadway and a considerabledistance therefrom, so as to insure the proper removal of the snow andto prevent the drifting of the snow after its removal.

The general practice now in vogue of removing snow from highways, is bythe use of plows pushed by motor trucks, tractors,

and the like. The use of a snow plow has many inherent disadvantageswhich I successfully overcome by the use of my device. With the ordinarytype of push plow, the same forces its way through the snow and leaves aridge on each side of the road, and these ridges increase in size eachtime the plow is pushed over a highway, so that in time, these ridges orbanks become so large that it is practically impossible to get the plowthrough. The ridges or banks not only hinder the passage of the plowalong the highway, but during stormy weather, and when the snow isdrifting, the snow tends, to lodge between these banks or ridges and thehigher the ridges or banks become, as a result of repeated plowing, thedeeper the snow will lay between the ridges. Further, these ridges orbanks area hazard to traflic, for they interfere with the View of adriver, often making it impossible for him to see'even a few feet ahead.

With the use of the push plow, the same does its work by crowding orpushing its way through the snow which makes the machine more liable tobreakage in hard-going or in travelling up steep grades, as there is noway in which the operator can lighten the strain on the machine.

' It is, therefore,- another prime object of my invention to provide amachine of the rotary or throwing principle that will remove snow fromcountry roads with as much or more speed than it can be done wi h thepush plow,

and at the same time eliminate the disadvantages that are inseparablefrom the latter.

A further salient object of my invention is to provide an improved snowremovin device, in which the same substantially eeds its waythrough thesnow, "and eliminates the formation, to a great extent, of the ridges orbanks at the sides of the road and in which the forward speed of thedevice can be lessened and the speed of the rotary snow im- 00 pellersincreased in heavy going, so as to reduce the strain on the machine andthus eliminate the likelihood of breakage of the various arts and thestalling thereof in drifts.

A urther prime object of my invention is the provision of a snowremoving machine embodying novel rotary snow impellers having bucketsarranged on the front and rear faces thereto, the buckets on the frontof the impeller, acting to directly engage and throw the snow to theside of the road, while the rear buckets act to engage and throw thesnow to the side of the road which are outside of the radius of thebuckets on the front of the impellers, novel means being provided forturning the snow outside of the radius of the front buckets intoengagement with the rear buckets, whereby the machine enga es and actson the show along the entire width of the machine.

A further important object of my invention is the provision of novelmeans for mounting the snow impellers on the supporting frame, withnovel means for rotating the impellers on the supportin frame, theentire device being so constructe as to render the same capable ofhandling a large quantity of snow, together with speed of performance.

A still further object of my-invention is to provide an improved rotarysnow removing device of the above character, which will be durable andefficient in use, one that will be simple and easy to manufacture andone which can be placed upon the market at a reasonable cost, andonewhich can be efli-' ciently used in any kind of snow; soft, hard,deep, or shallow. I

With these and other objects in view, the. invention consists in thenovel construction, arrangement and formation of parts, as will iers;

cifically described, in the accompanybe hereinafter more s claimed andillustrate in drawings in which:

Figure 1 is a front elevation of the preferred form of my improved snowremovin device;

Figure 2 is a plan new of thesame; Figure 3 is a vertical longitudinalsection throu h the device, illustrating the novel constructlon of therotary snow impeller;

Figure 4 is a bottom plan vlew of the same,

Figure 5 is a fragmentary detailed edge elevation of one of the rotarysnow impel- Figure 6 is a front elevational view illustrating anotherform of my device;

Figure 7 is a longitudinal section through the same illustrating thetype of rotary snow impeller used in the modified form;

Figure 8 is a horizontal section through the form of my invention shownin Figures 6 and 7 with the snow impellers and the associated partsremoved.

Referring to the drawings in detail, wherein similar referencecharacters designate corresponding parts, my improved device embodies asupporting frame 10 which may consist of supporting side arms 11 and 12,which are of a strong and sturdy nature.

As shown, the supports 11 and 12 include rearwardly projecting upper andlower angle bars 13. At the point where the bars converge, the same canbe provided with sleeves 14 for attachment to a motor truck, tractor,

While, as

or other appropriate vehicle. stated, my device is susceptibleforassociation with any type of motor or other vehicle, but because ofthe fact that it is preferable to drive the snow impellers with aseparate engine from the one that propels the truck, it is moreconvenient to provide a preferred manner of mounting, as will now bedescribed.

There are now on the market several makes of motor trucks, which are soconstructed that they can be driven backward or forward with the samefacility, that is, they have heversible drivers position and controls.These trucks have as much power and speed and as many gear changes forgoing backward as forward, and the truck of this type is the idealmachine on which to mount my invention. By mounting my improved snowremover on the rear end of a truck of this type and driving the truck inthe reversed osltion, the engine for driving the snow impellers may bemounted on the truck platform and connected directly to the drive shaft,as hereinafter pointed out, on my machine by a suitable shaft anduniversal joints, which makes a very ideal arrangement. Suitableapparatus for raising the improved snow removing device above theroadway, or lowering the same may also be mounted on the truck body atthe most convenient point.

My invention, as shown, in the accompanying drawings is what might betermed a double unit machine, that is, it has two snow impellersarranged side by side, so that if for example, the diameter of eachimpeller were five feet, the machinewould be. capable of making a tenfoot wide path through the snow, but machines of this same principle canbe built in a single unit or with a single impeller for cutting a narrowpath or four or more impellers may be used .side-by-side and in thisway, the diameter of the impellers could be reduced so as to keep downthe overall height of the machine and at the same time build the machinewith any width of cut.

The diverging ends of the supporting an le bars 13 are securely bolted,riveted,

we ded, or otherwise secured to the front part of the snow removingdevice, which embodies a transversely extending arcuately curved moldboard 15. This mold board 15 extends across the entire width of the machine and is provided with end walls 16 which can slightly inclineinwardly toward their rear ends. The front edges of the end walls 16 aresharpened so as to facilitate the cutting of the device through snow.The lower edge of the arcuate mold board 15 is extended forwardly toprovide outwardly projecting substantialy V-shaped cutting blades 17. Asshown, the V-shapedcutting blades 17 have their forward leading edgesharpened to facilitate their cutting through the snow, and owin to theinclination of the cutting edges, a su tantially shearing cutting actionwill be had. As disclosed, there is one of the V-shaped cutting bladeson each side of the machine and a rotary snow impeller 18 /is arrangedabove each of said cutting blades.

The rotary snow impellers 18 are mounted directly in front of the moldboard 15, one on each side of the transverse axis of the mold boardandeach of the same embodies a discshaped plate 19 having front buckets20 secured to one face thereof, 'and the rear buckets 21 secured to therear face thereof. The plates 19 at their axial centers can be providedwith suitable hub sleeves 22 for receiving the operating shafts 23 and24. These shafts extend rearwardly through the mold board and arerotatably supported in suitable bearing hangers 24' carried by the innerface of the mold board.

Any preferred means can be provided for securing the impellers to theirshafts. The buckets 20 and 21 face in the same direction and have theirleading edges sharpened as at 25, so as to facilitate their engagementwith the snow and the cutting of the buckets through the snow.

I provide a substantially circular guard plate 26 for each of the snowimpellers 18,

and these guard plates encircle the (periph cries of the impellers andare secure to the 9 blades or shares 17.

mold board 15 and their forwardly cutting These guards 26 have theirends spaced. to provide snow outlets or delivery mouths 27, attheopposite ends of the mold board and above the same. The top edge ofthe mold board carries guards or deflectors 28 which extendsubstantially tangentially to the upper ends of the guards 26,

and these deflectors also act as means for defining the snow outlets ordelivery openings.

The front edges of the guards 26 extend slightly beyond the impellers 18and have their front edges sharpened so as to form cutting members tofacilitate their passage through the snow. Thus, the front edges ofthese guards serve as dividers, that is, they divide the snow that is toenter the front impeller buckets from that which is to be directedagainst the mold board 15 and turned up against the rear buckets 21, aswill be later more fully set forth.

Extending forwardly of the guards 26 and the V-shaped cutting blades orshares 17 are arcuately substantially V-shaped plates 29 and theseplates 29 likewise have their edges sharpened so as to provide cuttingblades to act against the snow.

The front points of these cutting plates 29 are provided with runners30, so as to prevent the catching of the points of the plates inprojecting portions of the roadway.

The means provided for actuating the impellers comprises a common driveshaft 31 which is rotatably mounted in bearin bracka et 32, firmlysecured to the top of t e mold board'15 in rear of the deflectors 28 bymeans of a supporting plate 32. This drive shaft 31 is provided withsmall sprocket wheels 33 and 34 which are keyed or otherwise secured tothe said drive shaft. The rear ends of the operating shafts 23 and 24are provided with sprocket wheels 35 and 36, respectively, as clearlyshown in Figures 2 to f the drawings. An idler sprocket wheel 37 iscarried by a suitable stub shaft mounted on the bearing bracket, asshown. A sprocket chain 38 is utilized for directly connecting thesprocket wheels 33 and 35 together, and a second sprocket chain 39 isprovided for connecting the idler sprocket Wheel 37, and the sprocketwheel 36' together, one run of the sprocket chain being led over thesprocket Wheel 34. secured to the drive shaft 31. By this arrangement,the impellers are rotated in op posite directions relative to oneanother and in a direction to throw the snow upward of the oppositeends, of the machine through the snow discharge openings 27.

As previously described, the drive shaft 31 is driven from an enginecarried by the propelling truck.

In operation of my improved snow removing device, the blades 17 and theplates 29 cut the snow from the roadway and direct the snow back againstthe, arcuate face of the machine advances,

the sharpened edges 25 of the front buckets 20 of the impellers, cut

away the snow and forcibly carry and throw the snow out of the snowdischarge opening 27. The snow that is outside of the radius 0 the frontbuckets 25 is carried back against the mold board 15 as heretofore sugested, and the arcuate face'of the mold board turns this snow forwardlyagainst the rear buckets 21. Thesebuckets engage and cut this snow andthrow the same out of the discharge open-' lngs.

I lay particular stress on the use of the front and rear impellerbuckets and the means for directing snow against the rear impellerbuckets, as by this construction, I am enabled to effectively engage allof the snow throughout substantially the width of the snow removingdevice.

This is particularly desirable and essential in rotary snow plows.

In Figures 6 to 8 inclusive, I have illustrated another form of myinvention and this machine also embodies supporting beams which aresimilar to the supports 11 and 12,

illustrated in the preferred form and these supporting beams can beconnected to the propelling truck or tractor in the same manner as inthe preferred form.

The front ends of the supporting beams 50 are rigidly secured to thefront snow engagmg part of my device which embodies a back wall 51having formed thereon, or secured thereto, the forwardly extending sidewalls 52. The front edges of these side walls can be sharpened, so as tofacilitate the cutting of their way throughthe snow. Formed on orsecured to the backwall 50 is the forwardly projecting bottom wall 53,which carries the forwardly extending 'V-sliaped, cutting blades 54, theinclined edges of which are sharpened so as to cut the snow from theroadway. -Arranged in front of the back wall 51 are the substantiallycircular guard plates 54 for the rotary impellers, which will be morefully described. A top wall 55 can be provided and this top wall isprovided with flared deflectors 56 which extend substantiallytangentially to the circular guards 54, it being noted that the spacedends of the guards 54 and the deflectors 56 form the snow dischargeopenings.

Projecting forwardly of'the lower edges of the guards 54 are V-shapedarcuate cutting plates 57 and these plates have their edges sharpened soas to cut the snow from the roadway.

Rotatably mounted in suitable bearing brackets 58 on each side of themachine are the operating shafts 5'9 and 60, andthesc shafts aredisposed substantially at the axial centers of the guard plates 54. Theshafts extend through the back wall 51 and have and rear rotary snow.impellers 64 and 65.,

keyed or otherwise secured thereto, thesprocket, wheels 61 and 62,respectively.

Each of the shafts59 and 60 carry front Each of the impellers 64 and 65embodies a disc-shapedbody plate 66, and radially snow engaging buckets67, the edges of which are sharpened to facilitate their passage throughthe snow. -In this form of my invention, it is.

. An idler sprocket 72 is rotatably carried by the rear face of the backwall 51. A sprocket chain is provided for directly connecting thesprocket wheel 61 and one sprocket wheel 71 together, while a secondsprocket chain is way, and as the machine advances, the frontprovidedfor connecting the sprocket wheels 62 and 72 together, one run of thischain being placed in engagement with the other sprocket wheel 71. Theshaft 70 is dr ven from the propelling vehicle in any desired way anddue to the connection of the drive shaft, with the operating shafts 59and 60, these shafts may be driven in opposite directions, so that thesnow engaged by the front and rear impellers 64 and 65 will be thrownlaterally from the machine.

In this form of the invention, the same is driven through the snow inthe same manner as the first form and the V-shapedcutting blades 54 andthe V-shapedcutting plates 57 will cut the snow loose from theroadimpeller will engage the same and throw the snow laterally of themachine through the snow discharge openings. The snow outside of theradius of the front impellers will enter the machine in back of thepropellers and will be directed into engagement with the rear impellers65 which will throw this snow through the discharge openings.

From the foregoing description, it can be seen that I have provided asnow removing device that is capable of handling a large quantity ofsnow, together with the greatest possible speed of performance, and itis apparent that the entire front of the machine consists of the mostformidable working surface which acts u on the snow in the most directway as possi le.

' The greater part of the snow is engaged directly by the front of theimpellers and What is not taken up directly, is picked up and thrownagainst the rear impellers and disposed of in the same eflicient manner.

Changes in details may be made without 3. A snow'removing machinecomprising a transversely extending mold board of arcuate shape in crosssection, forwardly extending V-shaped cutting blades carried by themoldboard, and rotary snow impellers arranged in front of the mold boardincluding front and rear buckets.

4, A snow removing machine comprising 'a mold board, forwardly extendingsnow cutting blades carried by the mold board, substantially circularguards arranged in advance of the mold board having their ends spaced toprovide discharge openings, rotary snow impellers disposed within theguards, provided with front and rear snow engaging buckets.

5. A snow removing machine comprising a mold boardfforwardly extendingsnow cutting blades carried by the mold board, substantially circularguards arranged in advance of the mold board having their ends spaced toprovide discharge openings, rotary snow impellers disposed within theguards, provided with front and rear snow engaging uckets, the frontedges of the guards being sharpened.

6. A snow removing device comprising a mold board, forwardly projectingV-shaped blades having their inclined faces sharpened carried by themold board, forwardly directed side walls secured to the mold board andhaving their leading edges sharpened, circular guards arranged above thecutting blades and in advance of the mold board having front and rearimpeller buckets, the buckets being provided with cutting edges, theends of the guards being spaced to provide snow discharge openings andtangentially extending deflectors connected with the guards defining inconnection therewith the discharge openings.

7. A snow removing device comprising a transversely extending moldboard, forward- 1y extending sharpened cutting blades carried by thelower edge of the mold board, ro-' tary snow impellers arranged abovethe cut ting blades and each side of the transverse center of the moldboard, each of the impellers having front and rear buckets, and meansfor rotating the impellers in opposite direction to throw the snow outof the opposite ends of the machine.

8. Asnow removing device comprising supporting beams, a transverselyextending mo (1 board secured to the supporting beams of an arouateshape in cross section, rotar snow impellers arranged in front of themol board, including front and rear oppositely disposed snow engagingbuckets, said buckets having their leadin edges sharpened, forwardlyextending V-s aped snow cutting blades carried by the lower end of themold board, circular guards enclosing the rotary impellers having theends thereof spaced to define discharge openings, snow deflectorsextending tangentially'to the guards defining in connection therewiththe discharge openings, forwardly extending V-shaped plates carried bythe lower ends of the guards, means for rotating the impellers, thefront buckets of the impellers cutting directly on the snow, the snowoutside of the radius of the front buckets being received in the moldboard and turned by said mold board into engagement with the rearbuckets.

9. A snow removing device comprising supporting beams, a snow engagingdevice including a back plate and forwardly projecting bottom side andtopplates, the bottom plate being provided with V-shaped cutting blades,the sides being provided with cutting edges, circular guards providedwith forward cutting edges arranged above the cutting blades, anoperatin shaft arranged axially within each guard, t e guard beingprovided with a discharge opening, means for rotating the shaft, andfront and rear snow impellers secured to the operating shaft. 7

10. A snow removing device comprising supporting. arms, a front engaginmember secured to the beams including a ack wall and forwardlyprojecting side, top and bottom walls, forwardly projectingV-shapedcutting blades carried by the bottom wall, circular guardsarranged above the cutting blades on each side of the transverse centerof the machine, operating shafts extending axially into the guards,front and rear snow impelling wheels secured to the operating shafts,the guards having their ends spaced to provide discharge openings,deflectors carried by the top wall extending means for rotating theoperating s afts in opposite directions, ber arranged between theguards.

'11. A snow removing device comprising supportmg arms, a front engaginsecured to the beams including a back wall and forwardly projectingside, top and bottom walls, forwardly projecting V-shaped cutting bladescarried b the bottom wall, circular guards arranged above the cuttingblades on each side of the transverse center of the machine, operatingshafts extending axially into the guards, front and rear snow imfromsaid 0 enings,

polling wheels secured to the operating shafts, the guards having theirends spaced to rovide discharge openings, deflectors carrie by the topwall extending from said openings, means for rotating the operatinshafts in opposite directions, and a snow ividing member arrangedbetween the guards, the forward edges of the side walls and guards beingsharpened to cut through the snow being enga ed.

n testimony that I claim the foregoing I have hereunto set my hand atChilton, in

the county of Calumet and State of Wiscon- S111.

SAMUEL SEVERSON.

and a snow dividing memmember

